A healthy Lawrence Guy, who returned Tuesday, would give the Ravens five defensive linemen for Thursday.

Defensive end Lawrence Guy on Tuesday returned from a knee injury suffered Saturday against the Washington Redskins, giving the Ravens a boost at a defensive line position that could be thin in the final preseason game.

Starting defensive tackle Timmy Jernigan (knee) and defensive end DeAngelo Tyson (shoulder) also left the Washington game and haven’t practiced since. With starters Chris Canty and Brandon Williams likely to be held out of Thursday’s preseason finale at the Atlanta Falcons and protected for Week 1, that leaves just five available defensive linemen, provided Guy can play.

“It is going to be tight,” coach John Harbaugh said. “The idea that we go in there with 75 guys … 75 guys is really not 75 guys, because it’s going to end up being about 35 guys, probably, with the injuries, and it’s going to be a strain on those guys. It’s a tough game, but it’s also an opportunity. It’s an opportunity for those guys to show what they can do, and they’ll be excited to play.”

Guy was the only player who returned to practice Monday, with the list of players absent shrunken significantly because of Monday’s returns from injury and the placement of several long-term injured players on injured reserve.